Respuesta :

we have

[tex]j(x) =x^{2}-9\\k(x)=-x+7[/tex]

we know that

[tex]j(x)+k(x)[/tex] --------> results in a second degree polynomial

[tex]j(x)-k(x)[/tex] --------> results in a second degree polynomial

[tex]j(x)*k(x)[/tex] --------> results in a third degree polynomial

[tex]j(x)/k(x)[/tex] --------> results in a first degree polynomial

so

[tex]j(x)*k(x)[/tex]

[tex](x^{2}-9)*(-x+7)=-x^{3} +7x^{2} +9x-63[/tex]

therefore

the answer is

the multiplication of j(x) and k(x)

Answer:

No operations...... the other answer is wrong trust me